r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 214

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
14.2
14.3
Table 14.2
i = 0 to 6, 8, j = 0 to 7
Notes:
Operation when Accessing
Read
Write
The PDi_j (i = 0 to 6, 8, j = 0 to 7) bit in the PDi register controls the I/O of ports P0 to P3, P4_3 to P4_7, P5_0 to
P5_4, P5_6, P5_7, P6, and P8_0 to P8_6. The PORTi register consists of a port latch to hold output data and a
circuit to read the pin states.
Figure 14.1 shows the I/O Port Configuration (1) and Table 14.2 lists the I/O Port Functions.
Figure 14.12 shows the Pin Configuration.
1. Nothing is assigned to bits PD4_0 to PD4_2, PD5_5, and PD8_7.
2. Nothing is assigned to bits P4_0, P4_1, P5_5, and P8_7.
3. When the PORT4 register is read, bits P4_0 and 4_1 are set to 0.
4. When the PORT5 register is read, the P5_5 bit is set to 0.
5. When the PORT8 register is read, the P8_7 bit is set to 0.
6. When using bits P4_3 and P4_4 as XCIN and XCOUT, the pin input level cannot be read even if the PORT4
7. When using bits P4_6 and P4_7 as XIN and XOUT, the pin input level cannot be read even if the PORT4
PORTi Register
register is read. Bits P4_3 and P4_4 are set to 1. Also, even if bits PD4_3 and PD4_4 are set to 1 (output
mode), the values of these bits will not be output from the pins.
register is read. Bits P4_6 and P4_7 are set to 1. Also, even if bits PD4_6 and PD4_7 are set to 1 (output
mode), the values of these bits will not be output from the pins.
Pins Other than I/O Ports
I/O Port Functions
Preliminary document
Specifications in this document are tentative and subject to change.
I/O Port Functions
Write to the port latch.
Read the pin input level.
When PDi_j Bit is Set to 0 (Input Mode)
Value of PDi_j Bit in PDi Register
Read the port latch.
Write to the port latch. The value written to
the port latch is output from the pin.
When PDi_j Bit is Set to 1 (Output Mode)
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14. I/O Ports